I have the code for question 1 and 2 complete. Just need the code for question 3 and 4. C++ programming language please. P00< coImplement all the methods specified above to complete the Inventory class.In the tester program, Inventory.cpp, include the following operations.1. Create an instance of Inventory class, stockltem1 using the default constructor. Displaythe itemNumber, quantity, cost and totalCost of stockltem12. Create another instance of Inventory class, stockltem2 using the overloadedconstructor, and passing the following for itemNumber, quantity and cost - 124, 12,84.95. Display the associated data for stockltem2.3. Use the setter functions (mutators) to change the stockltem2 to 243, 50, 9.50.4. Check the input validation by setting the itemNumber, quantity and cost to -1 using thesetter functions. Observe the output.Submit both Inventory.h and Inventory.cpp files. Include sample output for all test cases.Sample Output/* RUN OUTPUT PRODUCED BY THIS TEST PROGRAMDemonstrating the default constructor...Item number: 0Quantity : 0Cost00 0 -MacBook Pro000000#3$*R * 00RR3.ClassRequest edit aceDesign an inventory class (Inventory.h) that holds the information for an item in a retail store'sinventory. Implement the class based on the UML diagram shown below:Inventoryprivate:int itemNumber;int quantity;double cost;I/An int that holds the item's numberI/An int that holds the quantity of the item on handIIA double that holds the wholesale per-unit cost of theitempublic:Inventory()Inventory(int, int, double); 1/Overloaded constructor.//Default constructor. Sets all the member variables to 0.I/Accepts an item's number, quantity, and cost as arguments.void setltemNumber(int); /I/Accepts an int argument and copies it into theitemNumber member variable.void setQuantity(int); //Accepts an int argument and copies it into the quantitymembervoid setCost(double); IIAccepts a double argument and copies it into the costmember variableint getltemNumber(); I/ Returns the value in itemNumberint getQuantity(); //Returns the value in quantitydouble getCost(); //Returns the value in costdouble getTotalCost(); //Computes and returns the total costbool validInt(int); I/This function returns true if its integer argument is valid (i.e.non-negative), and returns false otherwise.bool validFloat(double); //This function returns true if its floating-pointargument is valid (i.e. non-negative), and returns false otherwise.Implement all the methods specified above to complete the Inventory class.In the tester program, Inventory.cpp, include the following operations.MacBook Pro000000&$%)98.

Q: Test setter functions for given values

isplay the associated data for stockltem2. 3. Use the setter functions (mutators) to change the stockltem2 to 243, 50, 9.50. 4. Check the input validation by setting the itemNumber, quantity and cost to -1 using the setter functions. Observe the output.

isplay the associated data for stockltem2. 3. Use the setter functions (mutators) to change the stockltem2 to 243, 50, 9.50. 4. Check the input validation by setting the itemNumber, quantity and cost to -1 using the setter functions. Observe the output.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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